Question

Is it possible to override the Ctrl+D? I want to, for example console.log or something, and not add the links to the bookmarks.

Answer 1

Shortcuts can be overridden using the chrome.commands API. An extension can suggest a default shortcut (eg. Ctrl+D) in the manifest file, but users are free to override this at chrome://extensions/, as seen below:

Usage

This API is still under development and only available at the Beta and Dev channels, and the Canary builds ^{More info}. It will probably available to everyone starting at Chrome 24.

If you want to test the API in Chrome 23 or lower, add the “experimental” permission to the manifest file, and use chrome.experimental.commands instead of chrome.commands. Also visit chrome://flags/ and enable “Experimental Extension APIs”, or start Chrome with the --enable-experimental-extension-apis flag.

manifest.json

{
    "name": "Remap shortcut",
    "version": "1",
    "manifest_version": 2,
    "background": {
        "scripts": ["background.js"]
    },
    "permissions": [
        "tabs"
    ],
    "commands": {
        "test-shortcut": {
            "suggested_key": {
                "default": "Ctrl+D",
                "mac": "Command+D",
                "linux": "Ctrl+D"
            },
            "description": "Whatever you want"
        }
    }
}

background.js

// Chrome 24+. Use chrome.experimental.commands in Chrome 23-
chrome.commands.onCommand.addListener(function(command) {
    if (command === 'test-shortcut') {
         // Do whatever you want, for instance console.log in the tab:
         chrome.tabs.query({active:true}, function(tabs) {
             var tabId = tabs[0].id;
             var code = 'console.log("Intercepted Ctrl+D!");';
             chrome.tabs.executeScript(tabId, {code: code});
         });
    }
});

Documentation

• chrome.commands
• chrome.tabs (methods query and executeScript)